Improvements carpet-sweepers



To all'fwhom it may concer-m PATENT OFFICE.

oTrs H. WEED, or BOSTON, MASSACHUSETTS.

uviPRovEn/lENT IN CARPETSWEEPERS. A

Specicationforrning part of Letters Patent No. 115,399, dated May 30,1871.

`Be it known that I, OTIs H. Wann, of Boston, inthe countycfSuffolkandState of Massachusetts, have invented certain Improvements inCarpet-Sweepers, of which the following isa f ull, clear, and exactdescription, reference being had to the accompanying drawing making partof "this specification, in

Whiche j j i Figure lis alongitudinal section through the center ofthebrush-shaft and the bearings in whichit rests, constructed in accordancewith my present invention. Fig. 2 is a `transverse section on the line wof Fig. l.

Figs. 3, 4, and 5, perspective views, illustrating my invention indetail. y

To obtain access tothe pins on which the brush-shaft revolves, for thepurpose of oilin g, without removingthe plates in which they bear,

and without detaching the bail p or handle of the carpetsWe-eper, is theobject of my invention, which consists 4in a bearing-plate'which isbored through its center to form an openin g i for the reception of apin projecting from the end of the brush-shaft, which may then be oiledfrom the outside ofthe sweeper without necessitatingthe removal of thebearing-plate, as has heretofore been required where a pin projectingfrom the bearing-plate enters a hole Withinthe endof the brush-shaft,the pins in `the end of the shaft alsoenabling the brush to be correctlycenteredwhile being trimmed.

To enable others skilled in the art to understand and` use my invention,I will proceed to describe the manner in which I have'carried In thesaid drawing, A] is thecasing, within which revolves the brush B, at oneend of the shaft C of which is asmall gear or pinion,

\ a, which is drivenby the cogwheels D E, which forms a bearing forthisend of the brush-shaft.

r j The above-described construction Iadmits of the pins being oiledwithin their bearings Without the necessity of yremoving the plates G G,which operation has hitherto required their removal. With thisconstruction'the shaft is less liable to become clogged by the windingof thread or other refuse matter around it, and, as the bail or handle His not connected with the bearinglplates, they may be more readilyremoved, if required, than if the bail was attached thereto, asheretofore. Before thebrush is placed in position within the casing thegear and cap are tted on the ends of the shaft, and their pins serve ascenters during the operation of trimming the brush, which insures thebrush when in the sweeper being concentric with the line passing throughthe centers of the bearing-plates. Instead 'of the pins projecting fromthe outside of the gear and cap,

the cap maybe dispensed with and the gear Claim.

The bearing-plates G G, with the openings c i, and gear al with its pinb, and cap e with its pin h, when constructed and combined with thebrush-shaft G, substantially as and for the purpose set forth. e

Witness my hand this 6th day of September, A. D. 1870.

' OTIS H. WEED.

Witnesses:

N. W. STEARNS, P. E. Tnscnnivrncnnn.

